diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/hdcp')
5 files changed, 81 insertions, 53 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c index b963226e8af4..06d60f031a06 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c @@ -39,8 +39,12 @@ static void push_error_status(struct mod_hdcp *hdcp, if (is_hdcp1(hdcp)) { hdcp->connection.hdcp1_retry_count++; + if (hdcp->connection.hdcp1_retry_count == MAX_NUM_OF_ATTEMPTS) + hdcp->connection.link.adjust.hdcp1.disable = 1; } else if (is_hdcp2(hdcp)) { hdcp->connection.hdcp2_retry_count++; + if (hdcp->connection.hdcp2_retry_count == MAX_NUM_OF_ATTEMPTS) + hdcp->connection.link.adjust.hdcp2.disable = 1; } } @@ -59,8 +63,7 @@ static uint8_t is_cp_desired_hdcp1(struct mod_hdcp *hdcp) } } - return (hdcp->connection.hdcp1_retry_count < MAX_NUM_OF_ATTEMPTS) && - is_auth_needed && + return is_auth_needed && !hdcp->connection.link.adjust.hdcp1.disable && !hdcp->connection.is_hdcp1_revoked; } @@ -80,8 +83,7 @@ static uint8_t is_cp_desired_hdcp2(struct mod_hdcp *hdcp) } } - return (hdcp->connection.hdcp2_retry_count < MAX_NUM_OF_ATTEMPTS) && - is_auth_needed && + return is_auth_needed && !hdcp->connection.link.adjust.hdcp2.disable && !hdcp->connection.is_hdcp2_revoked; } @@ -313,9 +315,6 @@ enum mod_hdcp_status mod_hdcp_add_display(struct mod_hdcp *hdcp, goto out; } - /* save current encryption states to restore after next authentication */ - mod_hdcp_save_current_encryption_states(hdcp); - /* reset existing authentication status */ status = reset_authentication(hdcp, output); if (status != MOD_HDCP_STATUS_SUCCESS) @@ -362,9 +361,6 @@ enum mod_hdcp_status mod_hdcp_remove_display(struct mod_hdcp *hdcp, goto out; } - /* save current encryption states to restore after next authentication */ - mod_hdcp_save_current_encryption_states(hdcp); - /* stop current authentication */ status = reset_authentication(hdcp, output); if (status != MOD_HDCP_STATUS_SUCCESS) @@ -392,6 +388,60 @@ out: return status; } +enum mod_hdcp_status mod_hdcp_update_authentication(struct mod_hdcp *hdcp, + uint8_t index, + struct mod_hdcp_link_adjustment *link_adjust, + struct mod_hdcp_display_adjustment *display_adjust, + struct mod_hdcp_output *output) +{ + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; + struct mod_hdcp_display *display = NULL; + + HDCP_TOP_INTERFACE_TRACE_WITH_INDEX(hdcp, index); + memset(output, 0, sizeof(struct mod_hdcp_output)); + + /* find display in connection */ + display = get_active_display_at_index(hdcp, index); + if (!display) { + status = MOD_HDCP_STATUS_DISPLAY_NOT_FOUND; + goto out; + } + + /* skip if no changes */ + if (memcmp(link_adjust, &hdcp->connection.link.adjust, + sizeof(struct mod_hdcp_link_adjustment)) == 0 && + memcmp(display_adjust, &display->adjust, + sizeof(struct mod_hdcp_display_adjustment)) == 0) { + status = MOD_HDCP_STATUS_SUCCESS; + goto out; + } + + /* stop current authentication */ + status = reset_authentication(hdcp, output); + if (status != MOD_HDCP_STATUS_SUCCESS) + goto out; + + /* clear retry counters */ + reset_retry_counts(hdcp); + + /* reset error trace */ + memset(&hdcp->connection.trace, 0, sizeof(hdcp->connection.trace)); + + /* set new adjustment */ + hdcp->connection.link.adjust = *link_adjust; + display->adjust = *display_adjust; + + /* request authentication when connection is not reset */ + if (current_state(hdcp) != HDCP_UNINITIALIZED) + /* wait 100ms to debounce simultaneous updates for different indices */ + callback_in_ms(100, output); + +out: + if (status != MOD_HDCP_STATUS_SUCCESS) + push_error_status(hdcp, status); + return status; +} + enum mod_hdcp_status mod_hdcp_query_display(struct mod_hdcp *hdcp, uint8_t index, struct mod_hdcp_display_query *query) { diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h index 3ce91db560d1..7123f0915706 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h @@ -331,8 +331,6 @@ enum mod_hdcp_status mod_hdcp_add_display_to_topology( struct mod_hdcp *hdcp, struct mod_hdcp_display *display); enum mod_hdcp_status mod_hdcp_remove_display_from_topology( struct mod_hdcp *hdcp, uint8_t index); -bool mod_hdcp_is_link_encryption_enabled(struct mod_hdcp *hdcp); -void mod_hdcp_save_current_encryption_states(struct mod_hdcp *hdcp); enum mod_hdcp_status mod_hdcp_hdcp1_create_session(struct mod_hdcp *hdcp); enum mod_hdcp_status mod_hdcp_hdcp1_destroy_session(struct mod_hdcp *hdcp); enum mod_hdcp_status mod_hdcp_hdcp1_validate_rx(struct mod_hdcp *hdcp); diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.c index de872e7958b0..6ec918af3bff 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.c @@ -266,9 +266,6 @@ static enum mod_hdcp_status authenticated(struct mod_hdcp *hdcp, mod_hdcp_execute_and_set(mod_hdcp_hdcp1_link_maintenance, &input->link_maintenance, &status, hdcp, "link_maintenance"); - - if (status != MOD_HDCP_STATUS_SUCCESS) - mod_hdcp_save_current_encryption_states(hdcp); out: return status; } @@ -447,9 +444,6 @@ static enum mod_hdcp_status authenticated_dp(struct mod_hdcp *hdcp, mod_hdcp_execute_and_set(check_no_reauthentication_request_dp, &input->reauth_request_check, &status, hdcp, "reauth_request_check"); - - if (status != MOD_HDCP_STATUS_SUCCESS) - mod_hdcp_save_current_encryption_states(hdcp); out: return status; } diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c index 117c6b45f718..91c22b96ebde 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c @@ -571,9 +571,6 @@ static enum mod_hdcp_status authenticated(struct mod_hdcp *hdcp, } process_rxstatus(hdcp, event_ctx, input, &status); - - if (status != MOD_HDCP_STATUS_SUCCESS) - mod_hdcp_save_current_encryption_states(hdcp); out: return status; } diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c index 1b02056bc8bd..ade86a042398 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c @@ -45,7 +45,7 @@ static void hdcp2_message_init(struct mod_hdcp *hdcp, in->process.msg3_desc.msg_size = 0; } -static enum mod_hdcp_status mod_hdcp_remove_display_from_topology_v2( +static enum mod_hdcp_status remove_display_from_topology_v2( struct mod_hdcp *hdcp, uint8_t index) { struct psp_context *psp = hdcp->config.psp.handle; @@ -81,7 +81,7 @@ static enum mod_hdcp_status mod_hdcp_remove_display_from_topology_v2( return status; } -static enum mod_hdcp_status mod_hdcp_remove_display_from_topology_v3( +static enum mod_hdcp_status remove_display_from_topology_v3( struct mod_hdcp *hdcp, uint8_t index) { struct psp_context *psp = hdcp->config.psp.handle; @@ -107,7 +107,7 @@ static enum mod_hdcp_status mod_hdcp_remove_display_from_topology_v3( psp_dtm_invoke(psp, dtm_cmd->cmd_id); if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS) { - status = mod_hdcp_remove_display_from_topology_v2(hdcp, index); + status = remove_display_from_topology_v2(hdcp, index); if (status != MOD_HDCP_STATUS_SUCCESS) display->state = MOD_HDCP_DISPLAY_INACTIVE; } else { @@ -120,20 +120,7 @@ static enum mod_hdcp_status mod_hdcp_remove_display_from_topology_v3( return status; } -enum mod_hdcp_status mod_hdcp_remove_display_from_topology( - struct mod_hdcp *hdcp, uint8_t index) -{ - enum mod_hdcp_status status = MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE; - - if (hdcp->config.psp.caps.dtm_v3_supported) - status = mod_hdcp_remove_display_from_topology_v3(hdcp, index); - else - status = mod_hdcp_remove_display_from_topology_v2(hdcp, index); - - return status; -} - -static enum mod_hdcp_status mod_hdcp_add_display_to_topology_v2( +static enum mod_hdcp_status add_display_to_topology_v2( struct mod_hdcp *hdcp, struct mod_hdcp_display *display) { struct psp_context *psp = hdcp->config.psp.handle; @@ -180,7 +167,7 @@ static enum mod_hdcp_status mod_hdcp_add_display_to_topology_v2( return status; } -static enum mod_hdcp_status mod_hdcp_add_display_to_topology_v3( +static enum mod_hdcp_status add_display_to_topology_v3( struct mod_hdcp *hdcp, struct mod_hdcp_display *display) { struct psp_context *psp = hdcp->config.psp.handle; @@ -220,7 +207,7 @@ static enum mod_hdcp_status mod_hdcp_add_display_to_topology_v3( psp_dtm_invoke(psp, dtm_cmd->cmd_id); if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS) { - status = mod_hdcp_add_display_to_topology_v2(hdcp, display); + status = add_display_to_topology_v2(hdcp, display); if (status != MOD_HDCP_STATUS_SUCCESS) display->state = MOD_HDCP_DISPLAY_INACTIVE; } else { @@ -232,15 +219,28 @@ static enum mod_hdcp_status mod_hdcp_add_display_to_topology_v3( return status; } +enum mod_hdcp_status mod_hdcp_remove_display_from_topology( + struct mod_hdcp *hdcp, uint8_t index) +{ + enum mod_hdcp_status status = MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE; + + if (hdcp->config.psp.caps.dtm_v3_supported) + status = remove_display_from_topology_v3(hdcp, index); + else + status = remove_display_from_topology_v2(hdcp, index); + + return status; +} + enum mod_hdcp_status mod_hdcp_add_display_to_topology(struct mod_hdcp *hdcp, struct mod_hdcp_display *display) { enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; if (hdcp->config.psp.caps.dtm_v3_supported) - status = mod_hdcp_add_display_to_topology_v3(hdcp, display); + status = add_display_to_topology_v3(hdcp, display); else - status = mod_hdcp_add_display_to_topology_v2(hdcp, display); + status = add_display_to_topology_v2(hdcp, display); return status; } @@ -1021,14 +1021,3 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_stream_ready(struct mod_hdcp *hdcp) mutex_unlock(&psp->hdcp_context.mutex); return status; } - -bool mod_hdcp_is_link_encryption_enabled(struct mod_hdcp *hdcp) -{ - /* unsupported */ - return true; -} - -void mod_hdcp_save_current_encryption_states(struct mod_hdcp *hdcp) -{ - /* unsupported */ -} |